Details of Host Protein

 Host Protein General Information (ID: PT0578)
  Protein Name
Interleukin enhancer-binding factor 3 (ILF3)
  Gene Name
ILF3
  Host Species
Homo sapiens
  Uniprot Entry Name
ILF3_HUMAN
  Subcellular Location
Nucleus; nucleolus Cytoplasm Nucleus
  External Link
NCBI Gene ID
3609
Uniprot ID
Q12906
Ensembl ID
ENSG00000129351
HGNC ID
HGNC:6038
  Function in Host
RNA-binding protein that plays an essential role in thebiogenesis of circular RNAs (circRNAs) which are produced by back-splicing circularization of pre-mRNAs. Within the nucleus, promotescircRNAs processing by stabilizing the regulatory elements residing inthe flanking introns of the circularized exons. Plays thereby a role inthe back-splicing of a subset of circRNAs. As aconsequence, participates in a wide range of transcriptional and post-transcriptional processes. Binds to poly-U elements and AU-richelements (AREs) in the 3'-UTR of target mRNAs. Uponviral infection, ILF3 accumulates in the cytoplasm and participates inthe innate antiviral response. Mechanistically, ILF3 becomes phosphorylated and activated by thedouble-stranded RNA-activated protein kinase/PKR which releases ILF3from cellular mature circRNAs. In turn, unbound ILF3 molecules are ableto interact with and thus inhibit viral mRNAs. [1-5]
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  3D Structure
PDB ID: 2L33 
FASTA   Download
  2D PNG Download  
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Function of This Protein During Virus Infection
Virus NameSARS-COV-2 Protein Function Pro-viral [6]
Infected TissueLung Infection Time24 h
Infected CellA549 Cells (Adenocarcinomic Human alveolar basal epithelial cells) Cellosaurus IDCVCL_H249 
Method DescriptionTo detect the role of host protein ILF3 in viral infection, ILF3 protein knockout A549 Cells were infected with SARS-COV-2 for 24 h , and the effects on infection was detected through qRT-PCR.
ResultsIt is reported that Knockdown of ILF3 leads to the decreased the 50% percent of infected cells compared with control group.

Host Protein - Virus RNA Network
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 Full List of Virus RNA Interacting with This Protien
            RNA Region: 3'-UTR (hCoV-SARS/Manitoba/2003 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [7]
              Strains Name
hCoV-SARS/Manitoba/2003
              Strains Family
Beta
              RNA Binding Region
3'-UTR
              Virus Name
Severe acute respiratory syndrome-related coronavirus (HCoV-SARS)
              Interaction Type Potential binding protein
              Infection Cells HepG2 cells (hepatocellular carcinoma cell line)  (CVCL_0027 )
              Cell Originated Tissue Liver
              Method Description ENCODE project database; Pysster model; DeepRiPe (Section 3.6; 3.7; 3.8; 3.9); ClustalO (72) algorithm
           RNA Region: 3'-UTR (hCov-OC43/VR-759 Quebec/2019 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [7]
              Strains Name
hCov-OC43/VR-759 Quebec/2019
              Strains Family
Beta
              RNA Binding Region
3'-UTR
              Virus Name
Human coronavirus OC43 (HCov-OC43)
              Interaction Type Potential binding protein
              Infection Cells HepG2 cells (hepatocellular carcinoma cell line) HepG2 cells (hepatocellular carcinoma cell line)  (CVCL_0027 )
              Cell Originated Tissue Liver
              Method Description ENCODE project database; Pysster model; DeepRiPe (Section 3.6; 3.7; 3.8; 3.9); ClustalO (72) algorithm
           RNA Region: 3'-UTR (hCov-NL63/Amsterdam/2004 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [7]
              Strains Name
hCov-NL63/Amsterdam/2004
              Strains Family
Alpha
              RNA Binding Region
3'-UTR
              Virus Name
Human Coronavirus NL63 (HCov-NL63)
              Interaction Type Potential binding protein
              Infection Cells HepG2 cells (hepatocellular carcinoma cell line) HepG2 cells (hepatocellular carcinoma cell line)  (CVCL_0027 )
              Cell Originated Tissue Liver
              Method Description ENCODE project database; Pysster model; DeepRiPe (Section 3.6; 3.7; 3.8; 3.9); ClustalO (72) algorithm
           RNA Region: 3'-UTR (hCov-MERS/Jeddah/2012 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [7]
              Strains Name
hCov-MERS/Jeddah/2012
              Strains Family
Beta
              RNA Binding Region
3'-UTR
              Virus Name
Middle East respiratory syndrome-related coronavirus (HCov-MERS)
              Interaction Type Potential binding protein
              Infection Cells HepG2 cells (hepatocellular carcinoma cell line) HepG2 cells (hepatocellular carcinoma cell line)  (CVCL_0027 )
              Cell Originated Tissue Liver
              Method Description ENCODE project database; Pysster model; DeepRiPe (Section 3.6; 3.7; 3.8; 3.9); ClustalO (72) algorithm
           RNA Region: 3'-UTR (hCoV-HKU1/Hong Kong/2004 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [7]
              Strains Name
hCoV-HKU1/Hong Kong/2004
              Strains Family
Beta
              RNA Binding Region
3'-UTR
              Virus Name
Human coronavirus HKU1 (HCoV-HKU1)
              Interaction Type Potential binding protein
              Infection Cells HepG2 cells (hepatocellular carcinoma cell line) HepG2 cells (hepatocellular carcinoma cell line)  (CVCL_0027 )
              Cell Originated Tissue Liver
              Method Description ENCODE project database; Pysster model; DeepRiPe (Section 3.6; 3.7; 3.8; 3.9); ClustalO (72) algorithm
           RNA Region: 3'-UTR (hCov-229E/Würzburg/2000 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [7]
              Strains Name
hCov-229E/Würzburg/2000
              Strains Family
Alpha
              RNA Binding Region
3'-UTR
              Virus Name
Human coronavirus 229E (HCov-229E)
              Interaction Type Potential binding protein
              Infection Cells HepG2 cells (hepatocellular carcinoma cell line) HepG2 cells (hepatocellular carcinoma cell line)  (CVCL_0027 )
              Cell Originated Tissue Liver
              Method Description ENCODE project database; Pysster model; DeepRiPe (Section 3.6; 3.7; 3.8; 3.9); ClustalO (72) algorithm
           RNA Region: 3'-UTR (hCoV-19/Wuhan-Hu-1/2019 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [7]
              Strains Name
hCoV-19/Wuhan-Hu-1/2019
              Strains Family
Beta (B.1.351)
              RNA Binding Region
3'-UTR
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Interaction Type Potential binding protein
              Infection Cells HepG2 cells (hepatocellular carcinoma cell line) HepG2 cells (hepatocellular carcinoma cell line)  (CVCL_0027 )
              Cell Originated Tissue Liver
              Method Description ENCODE project database; Pysster model; DeepRiPe (Section 3.6; 3.7; 3.8; 3.9); ClustalO (72) algorithm
           RNA Region: 5'-UTR (hCoV-19/South Korea/KCDC03/2020 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [8]
              Strains Name
hCoV-19/South Korea/KCDC03/2020
              Strains Family
Alpha (B.1.1.7)
              RNA Binding Region
5'-UTR
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Interaction Type Directly bind to SARS-CoV-23 RNA's 5' UTR region
              Infection Cells Vero cells (epithelial kidney cell) Vero cells (epithelial kidney cell)  (CVCL_0059 )
              Cell Originated Tissue kidney
              Infection Time 24 h
              Interaction Score P-adjust < 0.05
              Method Description Modified RNA antisense purification coupled with mass spectrometry (RAP-MS); label-free quantification (LFQ); liquid chromatography with tandem mass spectrometry (LC-MS/MS)
           RNA Region: 5'-UTR (hCoV-19/IPBCAMS-YL01/2020 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [9]
              Strains Name
hCoV-19/IPBCAMS-YL01/2020
              Strains Family
Beta (B.1.351)
              RNA Binding Region
5'-UTR
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Infection Cells Huh7.5.1 cells (Hepatocyte derived cellular carcinoma cell) Huh7.5.1 cells (Hepatocyte derived cellular carcinoma cell)  (CVCL_E049 )
              Cell Originated Tissue Liver
              Infection Time 30 h
              Interaction Score Affinity = 0.902
              Method Description PrismNet; pull-down western (STAR methods); Mass spectrometry
           RNA Region: Not Specified Virus Region (hCov-OC43/VR-759 Quebec/2019 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [8]
              Strains Name
hCov-OC43/VR-759 Quebec/2019
              Strains Family
Beta
              RNA Binding Region
Not Specified Virus Region
              Virus Name
Human coronavirus OC43 (HCov-OC43)
              Infection Cells HCT-8 cells (Human ileocaecal adenocarcinoma cell) HCT-8 cells (Human ileocaecal adenocarcinoma cell)  (CVCL_2478 )
              Cell Originated Tissue Ileocecum
              Infection Time 12h; 24; 36h; 48h
              Interaction Score p_value < 0.05; FDR < 10%
              Method Description Modified RNA antisense purification coupled with mass spectrometry (RAP-MS); label-free quantification (LFQ); liquid chromatography with tandem mass spectrometry (LC-MS/MS)
           RNA Region: Not Specified Virus Region (hCoV-19/USA/WA1/2020 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [10]
              Strains Name
hCoV-19/USA/WA1/2020
              Strains Family
Alpha (B.1.1.7)
              RNA Binding Region
Not Specified Virus Region
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Infection Cells Huh7.5 cells (Hepatocyte derived cellular carcinoma cell) Huh7.5 cells (Hepatocyte derived cellular carcinoma cell)  (CVCL_7927 )
              Cell Originated Tissue Liver
              Infection Time 48 h
              Interaction Score FDR ≤ 0.05
              Method Description comprehensive identification of RNA-binding proteins by massspectrometry (ChIRP-MS)
           RNA Region: Not Specified Virus Region (hCoV-19/France/IDF-220-95/2020 )
              RNA Region Details RNA Info Click to show the detail information of this RNA binding region [6]
              Strains Name
hCoV-19/France/IDF-220-95/2020
              RNA Binding Region
Not Specified Virus Region
              Virus Name
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)
              Interaction Type Direct interaction
              Infection Cells HEK293 Cells (Human embryonic kidney cell) HEK293 Cells (Human embryonic kidney cell)  (CVCL_0045 )
              Cell Originated Tissue Kidney
              Infection Time 48 h
              Interaction Score SAINT score ≥ 0.79
              Method Description comprehensive identification of RNA-binding proteins by massspectrometry (ChIRP-MS)

Differential Gene Expression During SARS-COV-2 Infection
GEO Accession: GSE152641
Sample Type: Blood
Samples Details: Healthy Control: 24; COVID-19: 62
Platform: GPL24676 Illumina NovaSeq 6000
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GEO Accession: GSE162835
Sample Type: Nasopharyngeal Swabs
Samples Details: COVID-19 (Mild Symptoms): 37; COVID-19 (Moderate Symptoms): 10; COVID-19 (Severe Symptoms): 3
Platform: GPL24676 Illumina NovaSeq 6000
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GEO Accession: GSE175779
Sample Type: Human Bronchial Epithelial Cells
Samples Details: Healthy Control: 4 (0, 24, 48, 72 and 96 h); COVID-19: 4 (24, 48, 72 and 96 h)
Platform: GPL18573 Illumina NextSeq 500
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Protein Phosphorylation after Virus Infection
S362 [11]
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S382 [11]
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S482 [11]
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S503 [11]
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S506 [11]
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S62 [11]
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S762 [11]
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S792 [11]
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T363 [11]
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T469 [11]
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T504 [11]
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T514 [11]
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Y365 [11]
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Y790 [11]
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Y858 [11]
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Y867 [11]
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Potential Drug(s) that Targets This Protein
Drug Name DrunkBank ID Pubchem ID TTD ID REF
CYCLOSPORINE DB00091  5284373  D07JVU  [12]
MLN4924 DB11759  16720766  D0ZD2M  [9]
Selumetinib DB11689  10127622  D0T5DP  [9]
Triparanol . 11178236  D06YWH  [9]
Triparanol . 462382  . [9]

Protein Sequence Information
MRPMRIFVNDDRHVMAKHSSVYPTQEELEAVQNMVSHTERALKAVSDWIDEQEKGSSEQAESDNMDVPPEDDSKEGAGEQKTEHMTRTLRGVMRVGLVAKGLLLKGDLDLELVLLCKEKPTTALLDKVADNLAIQLAAVTEDKYEILQSVDDAAIVIKNTKEPPLSLTIHLTSPVVREEMEKVLAGETLSVNDPPDVLDRQKCLAALASLRHAKWFQARANGLKSCVIVIRVLRDLCTRVPTWGPLRGWPLELLCEKSIGTANRPMGAGEALRRVLECLASGIVMPDGSGIYDPCEKEATDAIGHLDRQQREDITQSAQHALRLAAFGQLHKVLGMDPLPSKMPKKPKNENPVDYTVQIPPSTTYAITPMKRPMEEDGEEKSPSKKKKKIQKKEEKAEPPQAMNALMRLNQLKPGLQYKLVSQTGPVHAPIFTMSVEVDGNSFEASGPSKKTAKLHVAVKVLQDMGLPTGAEGRDSSKGEDSAEETEAKPAVVAPAPVVEAVSTPSAAFPSDATAEQGPILTKHGKNPVMELNEKRRGLKYELISETGGSHDKRFVMEVEVDGQKFQGAGSNKKVAKAYAALAALEKLFPDTPLALDANKKKRAPVPVRGGPKFAAKPHNPGFGMGGPMHNEVPPPPNLRGRGRGGSIRGRGRGRGFGGANHGGYMNAGAGYGSYGYGGNSATAGYSQFYSNGGHSGNASGGGGGGGGGSSGYGSYYQGDNYNSPVPPKHAGKKQPHGGQQKPSYGSGYQSHQGQQQSYNQSPYSNYGPPQGKQKGYNHGQGSYSYSNSYNSPGGGGGSDYNYESKFNYSGSGGRSGGNSYGSGGASYNPGSHGGYGGGSGGGSSYQGKQGGYSQSNYNSPGSGQNYSGPPSSYQSSQGGYGRNADHSMNYQYR
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References
1 Ubiquitination and degradation of NF90 by Tim-3 inhibits antiviral innate immunity. Elife. 2021 Jun 10;10:e66501.
2 Coordinated circRNA Biogenesis and Function with NF90/NF110 in Viral Infection. Mol Cell. 2017 Jul 20;67(2):214-227.e7.
3 Phosphorylation of the NFAR proteins by the dsRNA-dependent protein kinase PKR constitutes a novel mechanism of translational regulation and cellular defense. Genes Dev. 2010 Dec 1;24(23):2640-53.
4 Facilitation of mRNA deadenylation and decay by the exosome-bound, DExH protein RHAU. Mol Cell. 2004 Jan 16;13(1):101-11.
5 DNA-dependent protein kinase interacts with antigen receptor response element binding proteins NF90 and NF45. J Biol Chem. 1998 Jan 23;273(4):2136-45.
6 Characterization and functional interrogation of the SARS-CoV-2 RNA interactome. Cell Rep. 2022 Apr 26;39(4):110744.
7 Computational Mapping of the Human-SARS-CoV-2 Protein-RNA Interactome. bioRxiv. 2021 Dec; DOI:.org/10.1101/2021.12.22.472458.
8 The SARS-CoV-2 RNA interactome. Mol Cell. 2021 Jul 1;81(13):2838-2850.e6.
9 In vivo structural characterization of the SARS-CoV-2 RNA genome identifies host proteins vulnerable to repurposed drugs. Cell. 2021 Apr 1;184(7):1865-1883.e20.
10 Discovery and functional interrogation of SARS-CoV-2 RNA-host protein interactions. Cell. 2021 Apr 29;184(9):2394-2411.e16.
11 Multilevel proteomics reveals host perturbations by SARS-CoV-2 and SARS-CoV. Nature. 2021 Jun;594(7862):246-252.
12 Drug repurposing for coronavirus (SARS-CoV-2) based on gene co-expression network analysis. Sci Rep. 2021 Nov 8;11(1):21872.